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description du format des données ( 1999-2007)

Par LEGOS Dernière modification 06/05/2015 14:03
The format of our reformatted files is as follows:

The drops are concatenated.  Each drop is coded as follows:

Line 1:
	Ship Code		Character*2
	Voyage Number		Character*3
	Drop number		integer (i3)
	space			1x
	year,month,day		i4,2i2
	time (GMT)		character*5
	lat (deg,min,dir)	character*5  NOTE: NOT decimal degrees...
	long (deg,min,dir	character*6  NOTE: NOT decimal degrees...
	number of temperatures 
		in drop		i4
	whether or not it hit bottom (HB if hit, blank if not...)
	the recorder type (RCT$ - from WMO table 4770)
	the probe type and equation(PEQ$ from WMO table 1770)
	the profile type (TEMP, PSAL, or COND)
	the data type (i.e., BA, XB, CT, TE, etc.)

Line 2++:
	temperatures		10x,20f3.1  (until all temperatures listed)

NOTE:  The first temperature value is at 0.0 metres. This is an extrapolated value 
from 4m because the XBT takes (on average) 3.6m to begin true temperature records.
This surface data is therefore discarded.

	Ship Code =  SR indicates the Swan Reefer

The web site for the WMO tables is:

See the example below for further details.

SR05S001 19990131 232Z0645S10510E0197  HB  RCT$ 03   PEQ$ 052  TEMP XB
          101101101100100100 99 99 99 99 98 98 98 98 98 98 98          

This drop is read as:  Swan Reefer, cruise 05s, drop 1 taken on 31 January 1999 
at 0232 hours GMT.  Position 6.45S, 105.10E and there are 192 temperature values
in the drop.  This probe hit the bottom (HB) just below 392m and the data 
was taken with the Sippican MK9 recorder using a Sippican Deep Blue probe 
to which the new depth equation has been applied. The data is temperature and the 
data came from a full resolution XBT, not a Bathy message. 

The temperatures are taken at 2 metre intervals, starting at 0.0 metres.  
Temperature is recorded in three characters to a tenth of a degree.  
Salinity and conductivity are recorded in four characters to a hundredth 
of a degree.

ONLY "good" data is recorded in this file, i.e., any data judged bad has 
been eliminated.  This means that if the probe hit the bottom, the depth of the 
bottom was just below the last data value recorded (i.e., data after the probe
lands is considered "bad"). If this "bad" data is required, or you require 
access to the quality codes associated with the data, you will need to use 
the Meds-ASCII format.  Contact the person who provided this example for 
more information...

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